US5360373A - Upwelling-air distributor for air-conditioning systems - Google Patents

Upwelling-air distributor for air-conditioning systems Download PDF

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Publication number
US5360373A
US5360373A US08/154,845 US15484593A US5360373A US 5360373 A US5360373 A US 5360373A US 15484593 A US15484593 A US 15484593A US 5360373 A US5360373 A US 5360373A
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US
United States
Prior art keywords
air
upwelling
distributor
pipe
valve
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/154,845
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English (en)
Inventor
Detlef Makulla
Marten Brunk
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H Krantz TKT GmbH
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H Krantz TKT GmbH
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Publication date
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Assigned to H. KRANTZ -TKT GMBH reassignment H. KRANTZ -TKT GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRUNK, MARTEN, DR., MAKULLA, DETLEF
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors

Definitions

  • the present invention concerns an air distributor for air-conditioning systems.
  • Such distributors are called upwelling-air distributors or stratified-air distributors. They usually stand upright on the floor, so that the incoming air flowing out of them toward anyone occupying the air-conditioned space will not have too far to flow.
  • the incoming air flows, especially in high-ceilinged and contaminated industrial spaces, through a relatively uncontaminated region just above the floor.
  • the incoming air accordingly mixes relatively little with the contaminated ambient air before being breathed in by the occupants. Since the source of heat and the source of contamination are usually identical in industrial spaces, the liberated contaminants rise by convection to the ceiling, where they are intercepted by the exhaust system. To maintain this current, the upwelling-air distributors must decelerate the flow of incoming air into the space and accelerate the flow of rising air. This approach will prevent the contaminated air from recirculating back from the ceiling into the space where the occupants are staying or working.
  • An upwelling-air distributor of the aforesaid genus is known from German OS 4 037 287. It comprises a perforated cylinder with horizontal and vertical components of perforated sheet metal. These components uniformly deflect the incoming air inside the cylinder and supply it horizontally to the space being air-conditioned. The higher density and lower temperature of the air leaving the distributor horizontally, however, provide it with a component that flows toward the floor. This situation is reinforced by the floor's Coanda effect. The stratum of incoming air becomes constricted and considerably accelerated, by a factor of as much as 2 to 3. The result is drafts and increased recirculation of the contaminated ambient air.
  • the object of the present invention is a generic upwelling-air distributor that will not cause drafts and that can be utilized to heat up the space being air conditioned.
  • a butterfly valve on the pipe inside the distributor can be opened and closed as desired to regulate the flow of incoming air in accordance with whether it is cooler or warmer than the ambient air.
  • the valve opens and creates a current of air with specific characteristics. First, it flows at a speed that increases from the bottom to the top along the outer cylinder. Second, it flows up at an angle. It is also possible to superimpose a swirling motion over the whole current. These features eliminate acceleration of the air flowing through the occupied space due to descending cold air.
  • the valve closes. The incoming air now flows down out of the upwelling-air distributor at a rate that definitely increases from top to bottom. These features counteract the rise of the warm incoming air.
  • FIG. 1 is a longitudinal section through an upwelling-air distributor
  • FIG. 2 is a top view of FIG. 1, and
  • FIGS. 3 and 4 illustrate air flowing through the upwelling-air distributor illustrated in FIGS. 1 and 2.
  • the illustrated upwelling-air distributor comprises two concentric air-permeable cylinders, specifically an outer cylinder 1 and an inner cylinder 2. Both cylinders are made of perforated sheet metal. There is an air intake 3 in the solid roof of the distributor. Air intake 3 obtains air from the buildings ventilating system. The base 4 of the distributor is also solid. The distributor rests on the floor 5 of the factory or other industrial space being treated.
  • Pipe 6 Accommodated loosely inside inner cylinder 2 and in the lower half of the upwelling-air distributor is a pipe 6.
  • Pipe 6 is open at each end. It can be blocked off by a butterfly valve 7 rotating on an axis inside it or on it. The flap can be rotated manually with a projecting handle or automatically by an electric or pneumatic mechanism 8.
  • the air at the bottom of pipe 6 can be induced to swirl by fan 9 accommodated therein.
  • the swirling motion can be augmented and reduced by raising and lowering fan 9 inside the pipe or by increase and decrease the angle of its blades.
  • diaphragms 10 and 11 Horizontally accommodated inside inner cylinder 2 and above pipe 6 are one or more diaphragms 10 and 11 in the form of flat rings.
  • the periphery of some of the diaphragms is solid, like that of the illustrated diaphragm 10.
  • the periphery of others is perforated, like that of the illustrated perforated-periphery diaphragm 11.
  • Diaphragm 12 spans the gap between the pipe and cylinder and divides it into two compartments 13 and 14.
  • the periphery of diaphragm 12 can be either solid or perforated or intersticed.
  • Pipe 6 can be obstructed and unobstructed to vary the pattern of air flow as illustrated in FIGS. 3 and 4.
  • valve 7 opens. Some of the incoming air will flow vertically through pipe 6 and some will emerge radially through outer cylinder 1 as illustrated in FIG. 3. The air flowing through pipe 6 is deflected at the base 4 of the air distributor into lower compartment 14. From compartment 14 it emerges from the bottom of outer cylinder 1. All of the incoming air leaving the distributor will accordingly flow slightly upward as illustrated in FIG. 3. Since the incoming air is cooler than the ambient air it will enter the occupied space due to its higher density alone.
  • valve 7 closes and no air can flow through pipe 6.
  • the result is a current that flows steeply down along the outside of the distributor as illustrated in FIG. 4 and more and more rapidly as it approaches the floor, In this state the distributor counteracts the tendency of the warm incoming air to rise rapidly, The resulting acceleration in the flow of ambient air is acceptable because heating usually occurs before the commencement of work, In summer, when the incoming air is warmer than the ambient air, the distributor is operated in the state illustrated in FIG. 4, More rapid flow in fact is desirable rather than detrimental when the ambient air is warmer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Treating Waste Gases (AREA)
  • Ventilation (AREA)
  • Air-Flow Control Members (AREA)
US08/154,845 1993-01-08 1993-11-19 Upwelling-air distributor for air-conditioning systems Expired - Fee Related US5360373A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4300300 1993-01-08
DE4300300 1993-01-08

Publications (1)

Publication Number Publication Date
US5360373A true US5360373A (en) 1994-11-01

Family

ID=6477867

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/154,845 Expired - Fee Related US5360373A (en) 1993-01-08 1993-11-19 Upwelling-air distributor for air-conditioning systems

Country Status (5)

Country Link
US (1) US5360373A (fr)
EP (1) EP0606078B1 (fr)
AT (1) ATE164667T1 (fr)
DE (1) DE59405548D1 (fr)
ES (1) ES2115085T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1304531A1 (fr) * 2001-10-10 2003-04-23 SCHAKO Klima Luft Ferdinand Schad KG Sortie d'air
US20060243814A1 (en) * 2005-04-29 2006-11-02 Rimmer Julian D T Variable air volume ceiling diffuser
US20150204574A1 (en) * 2014-01-21 2015-07-23 Halton Oy Air distribution device
US20150343476A1 (en) * 2014-05-29 2015-12-03 Global Finishing Solutions Llc Directional Air Apparatuses, System, and Methods of Using the Same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417715C1 (de) 1994-05-20 1995-12-07 Bree Hartmut Luftauslaß
ES2160448B1 (es) * 1998-08-13 2002-05-16 Bsh Fabricacion Sa Acondicionador de aire movil.
ITVA20130008A1 (it) * 2013-02-07 2014-08-08 Lino Alioli Sistema di diffusione aria calda per complementi di arredo da esterni
EP3150936B1 (fr) * 2015-09-30 2020-09-02 LTG Aktiengesellschaft Sortie d'air et son procede de fonctionnement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU156938A1 (fr) *
SU840608A2 (ru) * 1979-09-06 1981-06-23 Предприятие П/Я В-8843 Воздухораспределитель плафонногоТипА
DE3304151A1 (de) * 1983-02-08 1984-08-16 Kessler & Luch Gmbh, 6300 Giessen Luftauslass an der bestuhlung von saelen
JPS63172858A (ja) * 1987-01-08 1988-07-16 Taikisha Ltd 空調用空気吹出器
US5033362A (en) * 1990-08-30 1991-07-23 James E. Huckestein Inc. Air distribution outlet
WO1991014905A1 (fr) * 1990-03-29 1991-10-03 Kronfaelt Mats Procede et appareil utilises dans la ventilation de locaux

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL165834C (nl) * 1972-06-26 1981-05-15 Treffers Tech Adviesbureau Luchtuitstroomkast voor een luchtconditioneerinrichting.
DE2718760A1 (de) * 1977-04-27 1978-11-02 Mabag Luft & Klimatechnik Luftauslass fuer lueftungs- und/oder klimatisierungssysteme
DE3017397C2 (de) * 1980-05-07 1982-09-02 Turbon-Tunzini Klimatechnik GmbH, 5060 Bergisch Gladbach Luftauslaß

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU156938A1 (fr) *
SU840608A2 (ru) * 1979-09-06 1981-06-23 Предприятие П/Я В-8843 Воздухораспределитель плафонногоТипА
DE3304151A1 (de) * 1983-02-08 1984-08-16 Kessler & Luch Gmbh, 6300 Giessen Luftauslass an der bestuhlung von saelen
JPS63172858A (ja) * 1987-01-08 1988-07-16 Taikisha Ltd 空調用空気吹出器
WO1991014905A1 (fr) * 1990-03-29 1991-10-03 Kronfaelt Mats Procede et appareil utilises dans la ventilation de locaux
US5033362A (en) * 1990-08-30 1991-07-23 James E. Huckestein Inc. Air distribution outlet

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1304531A1 (fr) * 2001-10-10 2003-04-23 SCHAKO Klima Luft Ferdinand Schad KG Sortie d'air
US20060243814A1 (en) * 2005-04-29 2006-11-02 Rimmer Julian D T Variable air volume ceiling diffuser
US7641125B2 (en) 2005-04-29 2010-01-05 E.H. Price Ltd. Variable air volume ceiling diffuser
US20150204574A1 (en) * 2014-01-21 2015-07-23 Halton Oy Air distribution device
US10677491B2 (en) * 2014-01-21 2020-06-09 Halton Oy Air distribution device
US20150343476A1 (en) * 2014-05-29 2015-12-03 Global Finishing Solutions Llc Directional Air Apparatuses, System, and Methods of Using the Same
US11077459B2 (en) * 2014-05-29 2021-08-03 Global Finishing Solutions Llc Directional air apparatuses, system, and methods of using the same

Also Published As

Publication number Publication date
DE59405548D1 (de) 1998-05-07
ES2115085T3 (es) 1998-06-16
EP0606078B1 (fr) 1998-04-01
EP0606078A3 (fr) 1995-01-25
ATE164667T1 (de) 1998-04-15
EP0606078A2 (fr) 1994-07-13

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Effective date: 20061101